they are grounded because they are owned by ana and japan airlines out of japan. they grounded them yesterday after the ana emergency landing. by the way, boeing, the faa and ntsb, they all have investigators heading to japan to investigate what happened with that emergency landing. meanwhile, other airlines, which have already taken delivery, they are still flying the dreamliner. this is out of poland making its inaugural flight of the 787. right now, as we speak, maria, in a couple hours. it will be touching down here in chicago. despite airlines saying we're still going to fly, it s & p capital iq downgrading shares of boeing on the concern, maria, that eventually we could see some airline customers saying, you know what, putting me on the dreamliner, i'm skipping that flight so that's the latest of what's happening with boeing. maria? >> want to bring in a couple other voices, michael boyd, aviation expert and on the telephone jim hall, former ntsb chairman, now managing director of hall & associates.